Antifrost shield



Dec 6, 1932. s. FRANK 1,890,252

ANTIFROST SHIELD Filed Dec. 1, 1930 I N VEN TOR. v Jami/be]. Frank BY YZ ATTORNEY.

Patented Dec. 6, 1932 UNITED STATES PAT N oFFIc SAMUEL 'rnnuxgor snrAUL,rnnEso'rA '.ANTIFROST SHIELD Application filed December 1, 1930. SerialNo. 499,181.

An object of the present invention is to make an improved andsimplifiedanti-frost shield.

vided, in accordance with one feature of the invention, a two-pieceangular framezwith extension means mounted over the pointpf juncture ofthe two frame members, the extensions having a portion thereof whichoverlaps the frame members to assist in firm 1y holding them inposition, the extensions having means for mounting vacuum cups by whichthe shield may be supported in a de' sired position-on an automobilewindshield or other smooth surface.

These and other features of the invention will be more fully brought outin the following description and the accompanying draw- 30. ing,wherein:

Figure 1 is a view in top elevation of a windshield embodying thepresent invention, with one of the vacuum cups-removed.

Figure 2 is alongitudinal sectional view on the line 2-2 of Figure 1. y

. Figure 3 is an enlarged lower view of a portion ofthe frame memberwith one of the extension members for holding the vacuum cups connectedthereto.

Figure tis a sectional view on the line 4.41 of Figure 85,1, i

Figure 5 is a View of Figure 3 taken from.

the right hand side'of the structure shown in Figure 8, looking at theinterior of the angular frame member and V Figure 6 is an enlargedsectional View on the line 66 of Figure 1. p i

Referring to the drawing in detail, aframe A is composed of two similarmembers 1 and 5Q 2 of angularly bent sheet material, theend In order toattainthisobject, there is pro portions 3 and 4, thereof being bentinwardly at right angles to the side portions 5 These two frame-members1 and 2, are positioned in reversed order, as shown in Figure 1, with vthe ends of theside portions 3 and 4 thereof 'in abutting relationship.

l A pair of extension members 6 and 7 are constructed of sheet metal,having a planiform portion 8 ofthe width of the top of the framemembers'l and'2 and with a downwardly bent tab 9 .of the height of theside wall of the angular-1y bent frame members positioned to overlie theabutting ends ofthe frame members. These extensions 6 and 7 are securedin position by spot welding, the

downwardly bent tabs 9 to the abutting ends of the sides of theframe,members as at 11, see Figures 4 and 5. The extensions are pro vided witha slotted opening 12 to receivethe threaded shank 13 of a vacuum cup 14which is held in position in the extension as by means of a nut 15.Prongs 16 are stamped from the metal of thetopportions ofthe framemembers and a sheet of celluloid 17, 1 having openings 18 therein toreceive these prongs, is inserted in the angular frame with the prongs16 passing throughthese openings 18. The prongs 16 are then bent to-lieflat against the underside of the celluloid member 7 and to hold it inposition in the frame. so

.A strip 19 of resilient, air resisting mate: rial, such as felt, isthen secured in position below the outer edge of the celluloid andwithinthe downwardly bent sides of the frame member to form a continuousinsulating strip 5 ground the'entire border of the celluloid memer. l

The insulating strip 19 is preferably of a thickness to be compressedsomewhat by the fastening of the devicetothe windshield by means of thevacuum cups 14.- The use ofthe prongs 16 to grip the celluloid member 17in position in the frame, positively prevents displacement of thismember, and the under sur-. face of the celluloid is suitable foradhesive tabs 90f the extensions 6 and 7 rigidly hold the abutting endsof the frame members in position, and avoid the necessity of spot weld;

1. An anti-frost shield,- comprising a frame j formed of a pair ofsimilar, oppositely disbrackets connected to saidstripsat their posedstrips, having their ends in abutting relation, a plurality ofdownwardly extendingtprojections stampedfrom the material of saidstrips, a transparent sheet of af'size to fit within said frame, said.projectionsbeing bent over to engage said sheet, a pair 'of point ofabutment, said brackets having each a downwardly bent portion tooverliethe joint between said strips, Vacuum'cu'p means secured to-each of saidbrackets, and a flexiblesealing strip adhesively secured around themargin of said transparent sheet below said frame. Y

2. A frost shield of the character described, 1

comprising a frame formed of two strips having the end portions thereofbent in- Wardly,the two strips being secured together with their endportions in abutting relation,

' a plurality offdownw'ardly bent tabs'on'each ofsaid strips, atransparent sheet inserted in said frame,said sheet having a pluralityof marginal perforations to receive said downwardly benttabs, said tabsbeing bent over tohold said'sheet, a strip of resilient material aroundthe lower-face ofsaid transparent sheet, a pair of brackets mounted oneover each of the abutting ends ofsaid'strips, each of said bracketshaving a' downwardly bent tab to overlie and conceal the abutting endsof said strips, and vacuum cup means connected to each of said-brackets.

3. An anti-frost shield having a frame j formed of two strips of anglemetal having inwardly bent end portions, the ends of said strips beingsecured inv oppositely disposed abutting relation to each other, atransparent sheet secured in said frame, a resilient seal ing strippositioned marginally. around said transparent sheet, a pair of bracketssecured one over each abutting joint between 'said frame members, eachof saidbrackets having a downwardly bent tab overlyingfand secured tothe abutting frame portions, and :vacuum' cup means secured to. each ofsaid brackets. V v 7 i c 1 i 4. An anti-frost shield, comprising a frameformed of a pair of oppositely disp'osed'angle metal stripshaving'inwardly bent end portions having their ends in abuttingrelation, a plurality of downwardly bent tabs formed on each of saidstrips, a sheet of transparent material mounted in said frame and havinga plurality of perforations to receive sald tabs, saidtabs'being'bent-to grip saidsheet to secure it to said frame, a strip ofresilient material secured about the marginof said transparent sheet, apair of brackets mounted one overeach abuttin g j'oint between saidframe strips, and vacuum cup means mount ed in each of said brackets.

' r 5. An anti-frost shield,comprising a frame formed of two strips ofangle metalhaving the end portions thereof bent inwardly, the endportions of opposite strips being in abutting relation with each other,a transparent sheet inserted in said frame, a strip of resilientmaterial secured around the margin of said transparent sheet, a pair ofbrackets mounted'one over each abutting joint between said strips, a tabformed on each ofisaidsaid brackets. I r V I a 6. Ananti-frost shieldcomprising afram'e for-med ofa pair of angle metal strips having theirend portions bent inwardly, the end 7 portions of opposite strips beingin abutting relation with each other, tabs cut from the metal of saidstripsandbent downward- -ly,:- a sheet of transparent material having.

marginal perforations adapted to receive said tabs and to. besecured inposition in said frame by the bending of said tabs to underlie the undersurface of said transparent sheet,

astrip of resilient sealing material'mounted below said transparentsheetto seal said per-c forations and to extend downwardly below said angularmetal strips, and a pair of brackets mounted one on each end of saidframe to overlie the abuttingjointbetween saidstrips, a tab cut from themetal of said brackets'and bent downwardly to overlie the abutting jointbetween said strips to conceal.

said joint, andvacuum cup means secured to each of said brackets. I c 7.An anti-frost shield, comprising a frame of downwardly bent tabs formedthereon,

transparent sheet having a plur'alityof .per-

forations to receive'said tabs, said tabs being brackets, beingbentdownwardlytoyoverlie' and conceal the jointbetween said strips, andvacuum cup means securedfto eachof formed of sheetmetal, and having aplurality bent to grip saidsheet to secure it to said frame, a sealingstrip of resilient material secured around the margin of saidtransparent sheet beneath said metal frame, and mounting means ca'rriedby'said frame to mount said frame on a supporting surface.

8. An anti-frost shield,comprising aframe l formed of sheet metal, andhaving a plurality of downwardlybent'tabs formed thereon, a

transparent sheet having a plurality of perforations to receive saidtabs, said tabs being bentto grip saidsheet to secure it to said frame,a sealing striplof resilient. material '7 secured around the margin ofsaid transparent sheet beneath said metal frame, a mountingbracketmounted on each end of said frame to project therefrom, and a suetioncup carried by each of said brackets and adapted to engage a planiformsurface on which the device is to be mounted to hold said resilientsealing strip in engagement with said mountina surface;

I In testimony whereof I aflix my signature.

SAMUEL FRANK.

